Discretionary insulin delivery systems and methods
A method of facilitating delivery of a discretionary dose of insulin to a user includes: enabling the user or a caregiver to specify, via a computer-based user interface, parameters associated with a discretionary delivery of insulin that may be delivered to the user; subsequently receiving data that represents the user's glucose level during a period of time associated with the discretionary delivery; automatically determining, with a computer-based processor, based on the received data, if, when and how much discretionary insulin should be delivered to the user during the period of time associated with the discretionary delivery; delivering insulin to the user during the period of time associated with the discretionary delivery according to the automatic determination; and delivering insulin to the user with the insulin delivery device according to a non-discretionary insulin delivery schedule unless a discretionary insulin delivery mode has been triggered.
1 . A method, comprising:
receiving a user input defining a set of parameters of a discretionary insulin delivery mode of a system configured to deliver insulin to a user, wherein, when the system operates within the discretionary insulin delivery mode, the system, without further input from the user, is permitted to deliver discretionary insulin to the user according to a variable basal rate between an upper threshold basal rate and a lower threshold basal rate responsive to events associated with the user and within the defined set of parameters;
responsive to receiving an indication of an event associated with the user:
determining, via the system, the lower threshold basal rate to comprise a first basal rate that is lower than a constant basal rate of a non-discretionary insulin delivery that would have been delivered to the user according to a non-discretionary insulin delivery schedule absent receiving the indication of the event;
determining, via the system, the upper threshold basal rate to comprise a second basal rate that comprises the constant basal rate of the non-discretionary insulin delivery that would have been delivered to the user according to the non-discretionary insulin delivery schedule absent receiving the indication of the event in addition to a basal rate determined based on the indication of the event; and
starting the discretionary insulin delivery mode of the system and delivering an amount of the discretionary insulin to the user according to the variable basal rate; and
responsive to tracked discretionary insulin delivered to the user and a received glucose value, ceasing the discretionary insulin delivery mode of the system and delivering an amount of non-discretionary insulin to the user according to the non-discretionary insulin delivery schedule having the constant basal rate, wherein the system is not permitted to adjust the non-discretionary insulin delivery within the non-discretionary insulin delivery schedule.
2 . The method of claim 1 , wherein delivering the discretionary insulin to the user comprises delivering the discretionary insulin in addition to the non-discretionary insulin delivered according to the non-discretionary insulin delivery schedule.
3 . The method of claim 1 , wherein delivering the discretionary insulin to the user comprises delivering the discretionary insulin in lieu of the non-discretionary insulin delivered according to the non-discretionary insulin delivery schedule.
4 . The method of claim 1 , wherein ceasing the discretionary insulin delivery mode of the system comprises ceasing the discretionary insulin delivery mode of the system responsive to the tracked discretionary insulin indicating that a complete dosing of the discretionary insulin has been delivered to the user.
5 . The method of claim 1 , wherein ceasing the discretionary insulin delivery mode of the system comprises ceasing the discretionary insulin delivery mode of the system responsive to the tracked discretionary insulin indicating that a maximum amount of the discretionary insulin according to the user input set of parameters has been delivered within a time period.
6 . The method of claim 1 , wherein ceasing the discretionary insulin delivery mode of the system comprises ceasing the discretionary insulin delivery mode of the system responsive to the received glucose value indicating that a desired glucose level has been achieved.